#include <iostream>

const int  Max = 5;

int main(){
	using namespace std;

	double fish[Max];
	cout << "Please enter the weights of your fish.\n";
	cout << "You may enter up tp " << Max << " fish <q to terminate>.\n";

	cout << "fish #1: ";
	int i = 0;
	while (i < Max and cin >> fish[i])
		if ( ++i < Max)
			cout << "fish #" << i+1 << ": ";

	double total = 0.0;
	for (int j = 0; j < i; j++)
		total += fish[j];

	if (i == 0)
		cout << "No fish\n";
	else
		cout << total / i << " = average weight of " << i << " fish\n";

	cout << "Done.\n";

	return 0;
}